I. R. M. Hovenkamp-Obbema

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In the polder ‘Wormer, Jisp and Nek’, which forms part of a grossly eutrophicated region in the province North Holland, the effects of dredging and biomanipulation were studied in ditches. Four areas, including 5.7 ha surface water in total, were dammed up and dredged. It was feasible to remove the loose top-layer of sediments with a high content of(More)
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